18To Walk Outside Columbia: An Astronauts Tale
Reflections on EVA and the Columbia tradgedy from a man whos been there and done that.
By Winston Scott

20Lunar Tourism
A potential $600 billion dollar businessDavid Dietzler maps out how we can get there.
By David Dietzler

24Space: Final Frontier or the Next Battlezone?
The debate continues: should space only be used for scientific endeavors or does it offers unique opportunity to defend against terror?
By Travis K. Kircher

28An Ad Astra Special Report:
Health and Safety in the U.S. Space Program
An indepth look at the history, problems, and progress of astronaut healthcare in space.
By Eleanor A. ORangers, Pharm.D. and Linda M. Plush, MSN, CNS/FNP, FRSH

38Reasons to Believe
A collection of post-Columbia voices tell us their questions and hopes for our space program.
By Tammy Ruggles

41The Universal Reusable First Stage (RSF)
The next stage in space transportation.
By Kenneth Schweitzer